Number of Pieces: 9 Material: Wood Item Dimensions (LxWxH): 221×200×293 mm (6.57×7.99×11.53 in) 9Pcs Different Amazing IQ Toys, 9 Different Fun: the Best challenge for kids and adults. Develop Children's Intelligence—Each brain teaser puzzle is designed to enhance kids' perseverance and deduction power for improved mind sharpness and alertness. Enjoy Fun: Fun and an interesting brain teaser puzzle game. Easy to use and play with, everyone in the family could entertain with it in their spare time. Classic Educational Toys—This can not only provide us with a positive way of recreation and rest to release heavy stress but also practice our intelligence a lot, making us more clever and confident. Easy To Carry: Small, simple, and funny, help you focus your attention. Keep your mind and finger occupied, for adults' stress relief and relaxation and kids' intelligence development.